13155655 has 16 divisors (see below), whose sum is σ = 16611840. Its totient is φ = 9982368.

The previous prime is 13155641. The next prime is 13155673. The reversal of 13155655 is 55655131.

It is not a de Polignac number, because 13155655 - 2⁹ = 13155143 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15574 + ... + 16396.

It is an arithmetic number, because the mean of its divisors is an integer number (1038240).

Almost surely, 2^13155655 is an apocalyptic number.

13155655 is a deficient number, since it is larger than the sum of its proper divisors (3456185).

13155655 is a wasteful number, since it uses less digits than its factorization.

13155655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990.

The product of its digits is 11250, while the sum is 31.

The square root of 13155655 is about 3627.0725109929. The cubic root of 13155655 is about 236.0682018244.

The spelling of 13155655 in words is "thirteen million, one hundred fifty-five thousand, six hundred fifty-five".